G47.421 Billable Code
Narcolepsy in conditions classified elsewhere with cataplexy
Effective From: 10/01/2016
Chapter Classification
Chapter 6
Diseases of the nervous system (G00-G99)
Section Detail
G40-G47
Episodic and paroxysmal disorders (G40-G47)
Code Hierarchy
This code is a child of G47.42.
OPPS Editing Flags
External Cause
No
Mental Health
No
Manifestation (Edit 89)
Yes
Code First Applicable This code represents a manifestation of an underlying disease. The underlying condition must be coded first as the principal diagnosis.
No
Unacceptable PDX (Edit 113)
No
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